Cast steel trunnion mounted ball valve, API6D
This types of valves are made of cast steel or forged steel. For a cast steel trunnion ball valve, 3-piece body may be adopted when the sizes are bigger than 12"; for a forged steel trunnion ball valve, 3-piece body may be adopted when the sizes are bigger than 4". Otherwise, it is 2-piece body design.
Main features: 1. Hollow/solid ball, 2. Anti-fire safe design, 3. Anti-static device, 4. Free leakage of body Sealed construction, 5. Low torque in operation, 6. Double block & bleed (DBB), 7. Emergency sealing, 8. Extension stem on request, 9. Automatic body cavity relief, 10. Various driving types: gear, lever, electric, hydraulic, pneumatic, gas over oil.
Material Specifications
Body/Cap: WCB, LCB, A351 CF8, CF8M, CF3, CF3M, A995 4A
Ball: A105+ENP, LF2+ENP, A182 F304, A182 F316, A182 F304L, A182 F316L, A182 F6a, F51
Stem/Trunnion: A105+ENP, A350 LF2+ENP, A182 F304, A182 F316, A182 F304L, A182 F316L, A182 F6a, F51
Seat Retainer: A105+ENP, A350 LF2+ENP, A182 F304, A182 F316, A182 F304L, A182 F316L, A182 F6a, F51
Seal ring: PTFE / RPTFE / NYLON / VITON / PEEK / metal to metal